The shift dress is a design classic, an item of clothing that never dates and certainly never goes out of fashion. It first gained fame in the 1950s and 60s, when shift designs by Norman Norell, Lily Pulitzer and of course Givenchy, were worn by Audrey Hepburn, Jackie Kennedy and Jean Shrimpton. The simple design and clean lines of the shift made it a design that still remained vibrant and important even as the 1960s began to swing – the hemlines were just raised a little. The design gained shoulder pads in the 1980s, and then worked with the minimalistic style of the 1990s, being the last fashion favourite of…